Dazzle(Shadow Priest) and Razor(Lightning Revenant) ultimate are one of the few skills I knew that can render an enemy heroes' armor into a negative value.
Supposedly a enemy heroes armor is -10 and you have an attack of let say 60. Does that mean that the total damage dealt will be 70 or a negative value is simply just equal to 0 armor?
Best Answer
Yes, but armor doesn't work the way you think it does.
Armor acts like a damage multiplier, not addition or subtraction.
So a unit with -10 armor actually takes 46.1% more damage!
However, negative armor caps out at -20, which is equivalent to 71% more damage.
You also have to take into account of the type of armor. Remember that heroes have an innate resistance to most types of damage except from other heroes. Also, armor only works against physical damage.